Hi Keith, The Email Program is meant to be for a single email blast. If you would like to schedule a reoccuring send, I would recommend to set up a normal Smart Campaign.
While it is meant for a single blast if you have a recurring program and don't want to clone a Smart Campaign you can drop in a new email and after the blast archive the old email. This could be used as a shortcut... but it is really up to you. I actually have a couple of interesting use cases where I plan do something like I just described.